Which of the following is a correct resonance structure for compound A?
A) I
B) II
C) III
D) IV
E) none of these

Question

Which of the following is a correct resonance structure for compound A?  
A) I 
B) II 
C) III 
D) IV 
E) none of these

Quizplus · Accepted Answer

The correct resonance structure for compound A is I because it satisfies the octet rule for all atoms and also maintains the location of the double bond in the original structure. Resonance structures II, III, and IV violate the octet rule for one or more atoms, and/or change the location of the double bond, making them incorrect.

Which of the Following Is a Correct Resonance Structure for Compound